<?php

/**
 * Validator for the components of a URI for a specific scheme
 */
class HTMLPurifier_URIScheme
{
	
	/**
	 * Scheme's default port (integer)
	 * @public
	 */
	var $default_port = null;
	
	/**
	 * Whether or not URIs of this schem are locatable by a browser
	 * http and ftp are accessible, while mailto and news are not.
	 * @public
	 */
	var $browsable = false;
	
	/**
	 * Whether or not the URI always uses <hier_part>, resolves edge cases
	 * with making relative URIs absolute
	 */
	var $hierarchical = false;
	
	/**
	 * Validates the components of a URI
	 * @note This implementation should be called by children if they define
	 *	   a default port, as it does port processing.
	 * @param $uri Instance of HTMLPurifier_URI
	 * @param $config HTMLPurifier_Config object
	 * @param $context HTMLPurifier_Context object
	 * @return Bool success or failure
	 */
	function validate(&$uri, $config, &$context) {
		if ($this->default_port == $uri->port) $uri->port = null;
		return true;
	}
	
}

